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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> *    Copyright 2009 The JUnice Team</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> *    Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *    you may not use this file except in compliance with the License.</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *    You may obtain a copy of the License at</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *       <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *    Unless required by applicable law or agreed to in writing, software</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> *    distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> *    See the License for the specific language governing permissions and</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> *    limitations under the License.</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> com.junice.handler;
<a name="17" href="#17">17</a>  
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.Field;
<a name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.Method;
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> java.lang.reflect.Modifier;
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> java.util.HashMap;
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.util.Map.Entry;
<a name="23" href="#23">23</a>  
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.logging.Log;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> org.apache.commons.logging.LogFactory;
<a name="26" href="#26">26</a>  
<a name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> com.junice.annotation.Mock;
<a name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> com.junice.mock.MockEngine;
<a name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> com.junice.reflection.ClassVisitor;
<a name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> com.junice.reflection.FieldHandler;
<a name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> com.junice.reflection.HandleException;
<a name="32" href="#32">32</a>  
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment">/**</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment"> * Handler class to handle all {@link Mock} annotations.</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment"> *</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment"> * @see ClassVisitor</em>
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment"> * @see Mock</em>
<a name="38" href="#38">38</a>  <em class="jxr_javadoccomment"> * @author Marco Speranza</em>
<a name="39" href="#39">39</a>  <em class="jxr_javadoccomment"> * @version $Id: MockHandler.java 180 2010-01-13 08:08:05Z simone.tripodi $</em>
<a name="40" href="#40">40</a>  <em class="jxr_javadoccomment"> */</em>
<a name="41" href="#41">41</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/junice/handler/MockHandler.html">MockHandler</a> implements FieldHandler&lt;Mock&gt; {
<a name="42" href="#42">42</a>  
<a name="43" href="#43">43</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Log logger = LogFactory.getLog(MockHandler.<strong class="jxr_keyword">class</strong>);
<a name="44" href="#44">44</a>  
<a name="45" href="#45">45</a>      <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">private</strong> HashMap&lt;Field, Object&gt; mockedObjects = <strong class="jxr_keyword">new</strong> HashMap&lt;Field, Object&gt;(1);
<a name="46" href="#46">46</a>  
<a name="47" href="#47">47</a>      <em class="jxr_javadoccomment">/**</em>
<a name="48" href="#48">48</a>  <em class="jxr_javadoccomment">     * </em>
<a name="49" href="#49">49</a>  <em class="jxr_javadoccomment">     *</em>
<a name="50" href="#50">50</a>  <em class="jxr_javadoccomment">     * @param engine</em>
<a name="51" href="#51">51</a>  <em class="jxr_javadoccomment">     * @return</em>
<a name="52" href="#52">52</a>  <em class="jxr_javadoccomment">     */</em>
<a name="53" href="#53">53</a>      <strong class="jxr_keyword">public</strong> HashMap&lt;Field, Object&gt; getMockedObject(<a href="../../../com/junice/mock/MockEngine.html">MockEngine</a> engine) {
<a name="54" href="#54">54</a>          createMockedObjectBymockFramekork(engine);
<a name="55" href="#55">55</a>          <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>.mockedObjects;
<a name="56" href="#56">56</a>      }
<a name="57" href="#57">57</a>  
<a name="58" href="#58">58</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> createMockedObjectBymockFramekork(<a href="../../../com/junice/mock/MockEngine.html">MockEngine</a> engine) {
<a name="59" href="#59">59</a>          <strong class="jxr_keyword">for</strong> (Entry&lt;Field, Object&gt; entry : mockedObjects.entrySet()) {
<a name="60" href="#60">60</a>              <strong class="jxr_keyword">if</strong> ( entry.getValue() instanceof Class&lt;?&gt;){
<a name="61" href="#61">61</a>                  Field field = entry.getKey();
<a name="62" href="#62">62</a>                  <a href="../../../com/junice/annotation/Mock.html">Mock</a> mock = field.getAnnotation(Mock.<strong class="jxr_keyword">class</strong>);
<a name="63" href="#63">63</a>                  <strong class="jxr_keyword">this</strong>.mockedObjects.put(entry.getKey(), engine.createMock( (Class&lt;?&gt;) entry.getValue(), mock.type()));
<a name="64" href="#64">64</a>              }
<a name="65" href="#65">65</a>          }
<a name="66" href="#66">66</a>      }
<a name="67" href="#67">67</a>  
<a name="68" href="#68">68</a>      @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a name="69" href="#69">69</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> handle(<strong class="jxr_keyword">final</strong> <a href="../../../com/junice/annotation/Mock.html">Mock</a> annotation, <strong class="jxr_keyword">final</strong> Field element) <strong class="jxr_keyword">throws</strong> HandleException {
<a name="70" href="#70">70</a>          <strong class="jxr_keyword">final</strong> Class&lt;? <strong class="jxr_keyword">super</strong> Object&gt; type = (Class&lt;? <strong class="jxr_keyword">super</strong> Object&gt;) element.getDeclaringClass();
<a name="71" href="#71">71</a>  
<a name="72" href="#72">72</a>          <strong class="jxr_keyword">if</strong> (annotation.providedBy().length() &gt; 0 ) {
<a name="73" href="#73">73</a>                  Class&lt;?&gt; providedClass = type;
<a name="74" href="#74">74</a>                  <strong class="jxr_keyword">if</strong> (annotation.providerClass() != Object.<strong class="jxr_keyword">class</strong> ) {
<a name="75" href="#75">75</a>                      providedClass = annotation.providerClass();
<a name="76" href="#76">76</a>                  }
<a name="77" href="#77">77</a>              <strong class="jxr_keyword">try</strong> {
<a name="78" href="#78">78</a>                  Method method = providedClass.getMethod(annotation.providedBy());
<a name="79" href="#79">79</a>  
<a name="80" href="#80">80</a>                  <strong class="jxr_keyword">if</strong> (!element.getType().isAssignableFrom(method.getReturnType())) {
<a name="81" href="#81">81</a>                      <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a>(<span class="jxr_string">"Impossible to mock "</span>
<a name="82" href="#82">82</a>                              + element.getDeclaringClass().getName()
<a name="83" href="#83">83</a>                              + <span class="jxr_string">" due to compatibility type, method provider "</span>
<a name="84" href="#84">84</a>                              + providedClass.getName() + <span class="jxr_string">"#"</span>
<a name="85" href="#85">85</a>                              + annotation.providedBy() + <span class="jxr_string">" returns "</span>
<a name="86" href="#86">86</a>                              + method.getReturnType().getName());
<a name="87" href="#87">87</a>                  }
<a name="88" href="#88">88</a>                  <strong class="jxr_keyword">try</strong> {
<a name="89" href="#89">89</a>                      Object mocked = getMockProviderForType(element.getType(),
<a name="90" href="#90">90</a>                              method, type);
<a name="91" href="#91">91</a>                      <strong class="jxr_keyword">this</strong>.mockedObjects.put(element, mocked);
<a name="92" href="#92">92</a>                  } <strong class="jxr_keyword">catch</strong> (Throwable t) {
<a name="93" href="#93">93</a>                      <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a>(<span class="jxr_string">"Impossible to mock "</span>
<a name="94" href="#94">94</a>                              + element.getDeclaringClass().getName()
<a name="95" href="#95">95</a>                              + <span class="jxr_string">", method provider "</span>
<a name="96" href="#96">96</a>                              + providedClass.getName() + <span class="jxr_string">"#"</span>
<a name="97" href="#97">97</a>                              + annotation.providedBy() + <span class="jxr_string">" raised an error"</span>, t);
<a name="98" href="#98">98</a>                  }
<a name="99" href="#99">99</a>              } <strong class="jxr_keyword">catch</strong> (SecurityException e) {
<a name="100" href="#100">100</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a>(<span class="jxr_string">"Impossible to mock "</span>
<a name="101" href="#101">101</a>                         + element.getDeclaringClass().getName()
<a name="102" href="#102">102</a>                         + <span class="jxr_string">", impossible to access to method provider "</span>
<a name="103" href="#103">103</a>                         + providedClass.getName() + <span class="jxr_string">"#"</span>
<a name="104" href="#104">104</a>                         + annotation.providedBy(), e);
<a name="105" href="#105">105</a>             } <strong class="jxr_keyword">catch</strong> (NoSuchMethodException e) {
<a name="106" href="#106">106</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a>(<span class="jxr_string">"Impossible to mock "</span>
<a name="107" href="#107">107</a>                         + element.getDeclaringClass().getName()
<a name="108" href="#108">108</a>                         + <span class="jxr_string">", the method provider "</span>
<a name="109" href="#109">109</a>                         + providedClass.getName() + <span class="jxr_string">"#"</span>
<a name="110" href="#110">110</a>                         + annotation.providedBy() + <span class="jxr_string">" doesn't exist."</span>);
<a name="111" href="#111">111</a>             }
<a name="112" href="#112">112</a>         } <strong class="jxr_keyword">else</strong> {
<a name="113" href="#113">113</a>             <strong class="jxr_keyword">this</strong>.mockedObjects.put(element, element.getType());
<a name="114" href="#114">114</a>         }
<a name="115" href="#115">115</a>     }
<a name="116" href="#116">116</a> 
<a name="117" href="#117">117</a>     @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a name="118" href="#118">118</a>     <strong class="jxr_keyword">private</strong> &lt;T&gt; T getMockProviderForType(T t, Method method, Class&lt;?&gt; cls)
<a name="119" href="#119">119</a>             <strong class="jxr_keyword">throws</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a> {
<a name="120" href="#120">120</a>         <strong class="jxr_keyword">if</strong> (method.getReturnType() == t) {
<a name="121" href="#121">121</a>             <strong class="jxr_keyword">try</strong> {
<a name="122" href="#122">122</a>                 <strong class="jxr_keyword">if</strong> (logger.isDebugEnabled()) {
<a name="123" href="#123">123</a>                     logger.debug(<span class="jxr_string">"        ...invoke Provider method for Mock: "</span>
<a name="124" href="#124">124</a>                             + method.getName());
<a name="125" href="#125">125</a>                 }
<a name="126" href="#126">126</a>                 <strong class="jxr_keyword">if</strong> (!Modifier.isPublic(method.getModifiers())
<a name="127" href="#127">127</a>                         || !Modifier.isStatic(method.getModifiers())) {
<a name="128" href="#128">128</a>                     <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a>(<span class="jxr_string">"Impossible to invoke method "</span>
<a name="129" href="#129">129</a>                             + cls 
<a name="130" href="#130">130</a>                             + <span class="jxr_string">"#"</span> + method.getName()
<a name="131" href="#131">131</a>                             + <span class="jxr_string">". The method shuld be 'static public "</span>
<a name="132" href="#132">132</a>                             + method.getReturnType().getName()
<a name="133" href="#133">133</a>                             + <span class="jxr_string">" "</span> + method.getName() + <span class="jxr_string">"()'"</span>);
<a name="134" href="#134">134</a>                 }
<a name="135" href="#135">135</a> 
<a name="136" href="#136">136</a>                 <strong class="jxr_keyword">return</strong> (T) method.invoke(cls);
<a name="137" href="#137">137</a>             } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="138" href="#138">138</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> RuntimeException(e);
<a name="139" href="#139">139</a>             }
<a name="140" href="#140">140</a>         }
<a name="141" href="#141">141</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/junice/reflection/HandleException.html">HandleException</a>(<span class="jxr_string">"The method: "</span> + method
<a name="142" href="#142">142</a>                 + <span class="jxr_string">" shuld be return a type "</span> + t);
<a name="143" href="#143">143</a>     }
<a name="144" href="#144">144</a> 
<a name="145" href="#145">145</a> }
</pre>
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